<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title>jquery 1</title>
		<script src="jquery-3.4.1.min.js"></script>
		<script>
			$(function(){
				//jQuery("$")
				$("div").attr("align","right").html("教育改变生活");
				$("div:not(#d2)").css({"border":"10px red solid","background-color":"gray"});
				$("div:eq(2)").css("font-size","100px");
				$(":header").css("font-size","50px");
			});
		</script>
	</head>
	<body>
		<div id="d1">
			We change lives
		</div>
		<div id="d2">
			We change lives
		</div>
		<div id="d3">
			We change lives
		</div>
		<div id="d5">
			We change lives
		</div>
		<h1>年后</h1>
		<h3>新馆可能成为常见病</h3>
		<h6>长期存在</h6>
		
	</body>
</html>
